Lamp hanger



March 8, 1927.

LAMP HANGER Filed May 24 1922 3 Sheets-Sheet 1 v 1,620,516 c. L. BUNDYMarch 8,1927. 1,620,516

C. L. BUNDY LAMP HANGER Fil y 1.922 3 Sheets-Sheet B c. L. BUN-DY LAMPHANGER v March s, 1927. 1,620,516

Filed May 24 1922 3 Sheets-Sheet 5 Patented Mar. 8, W270 unirnn strainsPATENT OFFICE.

CLIFTON L. BUNDY, OF PHILADELFHIA. PENNSYLVANIA, ASSIGNOR PI-IILADELFPI-IIA ELECTRICAL & MANUFACTURING COMPANY, OF PHILADELPHIA, PENNSYL-VANIA, A CORPORATION OF PENNSYLVANIA.

LAMP HANGER.

Application filed May 24, 1922.

One object of this invention is toprovide a relatively simple,substantial, convenient device for rem-ovably supporting or suspending astreetor similar lamp in a raised or elevated position and moreparticularly to provide an automatically acting deyice for retaining orlooking a member carryln'g said lamp in a holder when said member hasbeen moved into or inserted Within the same.

I also desire to provide a lamp hanger or holder with novel meanswhereby the lampcarrying member supported therein may be quickly andconveniently disengaged and removed from said holder when desired.

Another object of my invention is to provide a. novel form.- ofsupporting structure in combination with a member actuated by a rope orother flexible element passing through said structure. whereby saidmember when drawn. by the rope into the structure, is retained thereinand supported thereby when the tension on said rope is released; thearrangement being such that suitable tension subsequently applied toand. then removed from the rope will cause the member to beautomatically released and permit of its being lowered.

It is further desired to provide a compact, convenient and reliabledevice whereby successive manipu ations of a supporting rope or cablewill cause or permit the holding member first tov be locked to andthereafter released from a supporting structure, the whole being soarranged as to be in no: way interfered with by sleet, ice or snow.

These objects and other advantageous ends I attain as hereinafter settorth, reference being had to the accompanying drawings, in which,

F in. l is a side elevation showing my invention as used in connectionwith a lamp supporting pole and arm;

Fig. 2 is a front elevation of the device constituting my invention;

Fig. 3 is a side elevation partly in vertical section, furtherillustrating the device shown in Fig; 2; i

Fig. 4 is a horizontal section on the line 4-4, Fig. 3

Figs. 5 and6 are respectively a front and Serial. No. 563,289.

Figs 9 and. 10- are fragmentary vertical sections taken. at right anglesto] each. other, illustrating. modified forms of the upper end of thelamp carrying member shown in at said end, carries a pulley t suitablyjournaled in a closed casing or fitting 5 communicating through saidarm. 52. with, a second casing 6% whereby the inner end of the arm 2(which is tubular) is connected to or mounted on. the mast arm 1. Thissecond: casing likewise has" mounted: in it a pulley 7 which withtl1epul ley*4, is so mounted that a rope or cable 8 passing" upwardlyaround the pulley 7 may be carried: through the tubular arm 2', aroundthe pulley 1 and vertlcally downward. therefrom. through a verticallyelongated casing 9. r

A ball and socket joint: is provided between the fitting. 5' and thecasing 9 so as to allow the latter toe-wing in all directions and:always hang vertical, regar less of the position of the supporting arm.A bolt 10- permits the parts from: becoming separated.

The casing 9 is characterized by having adacent its lower open. end andat opposite sides thereof two. in-waazdly'projecting shou'l-- ders asshown. at 1 1 in Fig. 3.. Pref erably these shoulders take the form: ofa complete annular ledge extendingentirely around the casing. Inaddition, ata suitable,

point above these shoulders, the casing has an inwardly projecting ribor lug 12; When the shoulders 11 take the form of an. annular ledge asdescribed the lug l2 has somewhat less than 180- angularlength and hasits circularly curved edge 13- bevelled" both upwardly and downwardly.

In accordance with my invention I mount a device such as an arc or otherlamp on a shackle 14L suspended centrally from a cross arm 15 by a pivotbolt. 16. This cross arm is hung from a yoke 1 7 on the lower end of acarrying member 18 by a bolt 19 and said carrying member has the form ofan elongated bar having a head 20' at its upper end perforated for" thereception of the rope or cable 8. as shown" in Figs. 5 and 6. Im-

mediately below and: to one side of said head the member 18- islaterally extended and formed with a series of teeth 21 pro jecting fromone face of said member in lines at right angles to the line of theopening 22 for the rope or cable.

This laterally extended upper part of the member 18 is provided withholes 23 for the reception of bolts 25 whereby a transversely toothedclamping plate 24. may be caused to grip the end of the rope 8 and soattach it to the upper end of the member 18 as to effectually preventits accidental Withdrawal or loosening. Below this clamping portion themember 18 is formed with a slot or vertically elongated opening 26 inwhich is horizontally pivoted a holdlng dog 27 carried on a pin or pivot28 so as to be free to rotate into any position.

The dog 27 has two arms 30 and 31 projecting in opposite directions atright angles to the .pivotal axis and of alength greater than thedistance between the shoulders 11. Thus the arms are adapted to supportthe lamp carrying member, and when there is an annular ledge asdescribed the member can assume any position of angular adjustment abouta vertical axis. Provision is made for automatically moving the dog tobring the arms 30 and 31 into a vertical or approximately, verticalposition when the carrying member is raised sufficiently to disengagethe said dog from the shoulders. To this end the arm 30 is preferablymade heavier than the arm 31 so that the dog tends to rotate into aposition in which the arm 30 is down. In this position the dog can passfreely between the shoulders 11.

In order that the arms 30 and 31 may be engaged with the shoulders 11, Iprovide means dependent on the movement of the carrying member above apredetermined position for moving the said dog to bring the arms 30 and31 into their horizontal shoulder engaging position. Preferably thismeans comprised two arms 29, 29 on the dog 27 these arms beingperpendicular to the arms 30 and 31 and being short enough to passbetween the soulders 11. These arms co-operate with the lug 12 in amanner to be described.

With the above described arrangement of parts, after a lamp or otherobject has been attached to the shackle 14, it may be raised by tensionexerted on therope 8, and as it nears the upper limit of its path ofmovement, the member 18 passes into the casing '9 with the dog 27 insuch position that its arms 29 are horizontal. As the upward movement ofthe member 18 and its associated parts is continued, one of the arms 29strikes and passes the rib or lug 12 and the whole structure isultimately brought to rest by the head .20 striking on the inside of thetop of the casing 9.

If now the tension on the rope 8 be suddenly slacked off or reduced, thelamp attached to the shackle 14 and its associated parts causes themember 18 to move downwardly in the casing 9 so that an arm 29 of thedog strikes the upper beveled surface 13 of the rib 12, tilting said dogso that instead of passing through the open lower end of the casing, itsarm 30 strikes the ledge 11 thereof, so that utlimately the two arms 30and 31 both rest upon the same and assume a horizontal position acrossthe opening, as shown in Fig. 3, supporting the weight of the member 18and the lamp etc. attached thereto.

Obviously no side swinging of the lamp or any other ordinary forces towhich it is exposed can dislodge the dog 27 from its given position,although when it is desired to lower the lamp for inspection oradjustment, this may be easily accomplished by pulling on the rope 8 andraising the mem ber 18 sufficiently to permit the long arm 30 of the dogto clear the ledge 11. Thereupon said long arm swings verticallydownward and the short arms 29 assume horizontal positions so that thedog is free to pass out of the open lower end of the casing 9.

From the above description it will be appreciated that my device, whilebeing relatively simple and inexpensive to manufacture, is none the lessdurable, convenient and reliable under conditions of use. Moreover,owing to the fact that when the lamp-carrying member 18 is inits lockedposition its upper part, as well as the dog, lies within and isprotected by the casing 9, it is obvious that no accumulation of ice orsleet will interfere with its operativeness.

If it be desired that the casing 9 with its associated parts should becapable of swinging in but a single plane relatively to the fitting 5,its upper part may be made as shown in Figs. 9 and 10, with laterallyprojecting trunnions 33 designed to fit suitable bearings in the casing5.

I claim 1. The combination in a lamp hanger, of a supporting structure;a lamp carrying member; means for raising and lowering said member; adog horizontally pivoted to the lamp carrying member and having twosimilar arms extending in opposite directions from the pivotal axis; andshoulders on said supporting structure for engaging the extremities ofsaid arms when the latter are substantially horizontal, the saidshoulders permitting the dog to pass between them when the arms arevertical or approximately s0.

2. The combination in a lamp hanger, of a supporting structure; a lampcarrying member; means for raising and lowering said member; a doghorizontally pivoted to the lamp carrying member and having two similararms extending in opposite direclLlO tions from the pivotal axis;shoulders on said supporting structure for engaging the extremities ofsaid arms when the latter are substantially horizontal, the saidshoulders permitting the dog to pass between them when the arms arevertical or approximately so; and means for automatically moving thesaid dog to bring the arms into vertical position, when the carryingmember is raised to disengage the dog from the shoulders.

3. The combination in a lamp hanger, of a supporting structure; a lampcarrying member; means for raising and lowering said member; a doghorizontally pivoted to the lamp carrying member and having two similararms extending in opposite directions from the pivotal axis; shoulderson said supporting structure for engaging the extremities of said armswhen the latter are sub stantially horizontal, the said shoulderspermitting the dog to pass between them when the arms are vertical orapproximately so; and a counterweight on the dog for automaticallymoving it to bring the arms into vertical position, when the carryingmember is raised to disengage the dog from the shoulders.

4. The combination in a lamp hanger, of a supporting structure; a lampcarrying member; means for raising and lowering said member; a doghorizontally pivoted to the lamp carrying member and having two similararms extending in opposite directions from the pivotal axis; shoulderson said supporting structure for engaging the extremities of said armswhen the latter are substantially horizontal, the said shoulderspermitting the dog to pass between them when the arms are vertical orapproximately so; and means dependent on the movement of the carryingmember above a predetermined position for moving the said dog to bringthe arms into their horizontal shoulder engaging position.

5. The combination in a lamp hanger, of a supporting structure; a lampcarrying member; means for raising and lowering said member; a doghorizontally pivoted to the lamp carrying member and having two similararms extending in opposite directions from the pivotal axis; shoulderson said supporting structure for engaging the extremities of said armswhen the latter are substantially horizontal, the said shoulderspermitting the dog to pass between them when the arms are vertical orapproximately so; a cross arm on the dog shorter than the aforesaidarms; and a lug on the supporting structure for engaging the cross arm,when the carrying member is moved above a predetermined position, tomove the said dog to bring the first of said arms into their horizontalshoulder engaging position.

6. The combination in a lamp hanger, of a supporting structure; a lampcarrying member; means for raising and lowering said member; a doghorizontally pivoted to the lamp carrying member and having two similararms extending in opposite directions from the pivotal axis; shoulderson said supporting structure for engaging the extremities of said armswhen the latter are substantially horizontal, the said shoulderspermitting the dog to pass between them when the arms are vertical orapproximately so; means for automatically moving the said dog to bringthe arms into vertical position when the carrying member is raised todisengage the dog from the shoulders; and means dependent on themovement of the carrying member above a predetermined position formoving the said dog to bring the arms into their horizontal shoulderengaging position.

7. The combination in a lamp hanger, of a supporting structure; a lampcarrying member; means for raising and lowering said member; a doghorizontally pivoted to the lamp carrying member and having two similararms extending in opposite directions from the pivotal axis; shoulderson said supporting structure for engaging the extremities of said armswhen the latter are substantially horizontal, the said shoulderspermitting the dog to pass between them when the arms are vertical orapproximately so; a counterweight on the dog for automatically moving itto bring the arms into vertical position when the carrying member israised to disengage the dog from the shoulders; a cross arm on the dogshorter than the aforesaid arms; and a lug on the supporting structurefor engaging the cross arm, when the carrying member is moved above apredetermined position, to move the said dog to. bring the first of saidarms into their horizontal shoulder engaging position.

CLIFTON L BUNDY.

